Pleated filter



FIG. 1 is a front elevation view of a pleated filter, showing, my new design;

FIG. 2 is a top plan view of the pleated filter of FIG. 1, with the bottom plan view being identical thereto;

FIG. 3 is a rear elevation view of the pleated filter shown in FIG. 1; and,

FIG. 4 is a right side view of the pleated filter of FIG. 1, with the left side view being identical thereto.

The features depicted in broken lines are for illustrative purposes only and do not form a part of the claimed design. 

The ornamental design for a pleated filter, as shown and described. 